Renesas Technology, Tools FAQs
Last Updated: July 22, 2003
Document Number: 03062002_e
Q.
The ROM in which the target program has been written is mounted on the user target board. I set the MCU to the microprocessor
mode. I am trying to execute the program, but it does not run normally and be debugged.
What could be the problem?
A.
Please confirm the following items.
Are the user target and emulator properly connected?
Confirm the connection for the following signals: address, data, CS0*-CS3*, RD*, WR*(WRL*), BHE*(WRH*), CNVSS,
BYTE, RDY*, HOLD*, NMI*.
When you start up M3T-PD308 or M3T-PD308F, check the signal level of the user target in the EMEM dialog to make sure it
is recognizing the emulator.
Do the following signal levels in the EMEM dialogue match the user target?
CNVSS, BYTE, RDY*, HOLD*, NMI*
1.
After M3T-PD308 or M3T-PD308F is started up and the SFRs (special function registers) to access the external ROM
are set, are the contents of the external ROM correctly displayed in the memory window?
Check the following settings in the debugger memory window:
Processor mode bit (PM00, PM01)
❍
R/W mode select bit (PM02)❍
External memory space mode bit (PM10, PM11)❍
External space data bus width select bit (DS0-DS3)❍
External space wait bit (WCR0-WCR7)❍
2.
Are the contents of the external ROM being referenced?
Specify the external ROM area address in the memory window and display the contents.
If the contents cannot be referenced, try the following procedures:
Lower the operating frequency.
❍
Increase the main clock division rate.❍
Increase the number of waits.❍
Note that when using the emulator, the user target board and the MCU in the emulator are connected through a flexible cable
that requires approximately 8 ns more for setup than with the actual MCU on the actual board.
3.
Was the reset vector value set before executing the target program?
When connecting the emulator, the reset vector area must be selected on the emulator side, regardless of the setting in the
EMEM dialogue. Before executing the target program, make sure you set the reset vector in the memory window.
4.
Top of Page | Back to Previous Page
Terms of Use Privacy Policy
(C)2004 Renesas Technology Corp., All Rights Reserved.
Comentários a estes Manuais